Signal-lock.



D. J. KAVANAGH.

SIGNAL LOOK.

APPLICATION FILED APR. 25, 1912.

l,74,955 Patented 0013.7,1913.

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SIGNAL LOOK.

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COLUMBIA PLANDGRAPII C0-.WI\SHINGTON, n, c.

DAN J. KAVANAGH, OF NEW MARTINSVILLE, WEST VIRGINIA.

SIGNAL-LOCK.

Specification of Letters Patent.

Application filed April 25, 1912.

Patented Oct. 7, 1913. Serial No. 693,159.

To all whom it may concern:

Be it known that 1, DAN J. KAVANAGH, a citizen of the United States,residing at New Martinsville, in the county of VVetzel and State of WestVirginia, have invented certain new and useful Improvements inSignal-Locks, of which the following is a specification, reference beinghad to the accompanying drawings.

This invention comprehencls certain new and useful improvements insignaling devices or indicators, designed for use in connect on withtelephone booths, vehicles, or other 1nclosures to indicate whether thesame are occupied and the door leading thereinto is locked.

The invention has for its primary object a simple, durable and eflicientconstruction of device of this character, the parts of which may becheaply manufactured and readily assembled and not liable to get out oforder and which will so operate that the indicating device will beautomatically moved to a predetermined position indicating that theinclosure has been vacated or i the door leading thereinto unlocked, allhanging or accident-a1 setting of the device 1 bracket or plate 15 whichis secured to the to the locked position being positively precluded. Andthe invention also aims to i the casing 8. The link rod 11 passesupwardly 2 through the sleeve 14 as clearly illustrated generallyimprove this class of devices to render them more useful andcommercially desirable.

Vith these and other objects in view as will more fully appear as thedescription proceeds, the invent-ion consists in certain constructions,combinations and arrangements of the parts that I shall hereinafterfully describe and claim.

For a full understanding of the invention reference is to be had to thefollowing description and accompanying drawings in which Figure l is aperspective view illustrating one application of my improved signallock; Fig. 2 is a sectional side elevation of the operating mechanismpartly broken away; Fig. 3 is a transverse sectional view on the line 33of Fig. 2; Fig. 4 is a similar view on the line 4. 1 of Fig. 2; Fig. 5is a horizontal section on the line 55 of Fig. 2; and Fig. 6 is a detailvertical section on the line 66 of Fig. 2.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the accompanying drawingsby like reference characters.

Referring to the drawings, the numeral 1 designates a portion of a wallof an inclosure of any character, and 2 a door controlling the openinginto said inclosure or compartment. Secured to the inside of the wall 1is a lock casing 3 which is provided with a journal bearing 4 in which aspindle 5 is mounted, said spindle extending through the wall 1 to theouter side thereof, and provided. with a square or other many sidedouter extremity whereby a suitably formed key may be attached thereto tooperate the device from the outside of the inclosure. A latch lever 6 ismounted intermediate its ends on the spindle 5 to turn therewith, saidlatch lever being formed within the casing 3 with 2. preferablyangularly disposed arm 7 which is formed with a slot 8 accommodating apin 9 which is secured to the lower bifurcated end 10 of a verticallydisposed and reciprocatory link rod 11, said rod be- 1 ing mounted formovement within a vertically disposed caslng 12 the lower end of i which18 mounted in a bearing sleeve 13 proj ecting upwardly from the casing 3and the upper end of which is mounted in and held by a correspondingsleeve 14 carried by a wall 1 in a relatively elevated position above inthe drawings, and is provided at its upper end with a forked connectingmember 16 carrying a pin 17 which is mounted for movement in a slot 18formed in one end of a laterally extending arm 19 secured to ahorizontally disposed shaft 20- which is mounted in a bearing collar 21formed on and projecting outwardly from the outer face of the plate orbracket 15. The shaft is also journaled in a bearing ring 22 which issecured by screws or similar fastening devices to the outer-side of thewall 1, the shaft projecting outwardly from said wall and having securedto its free extremity or end the semaphore or indicating device 23 whichin the present instance is formed of sheet steel with two disks arrangedat right angles to each other, one disk being painted white, forinstance, and the other disk red, the red disk displaying the wordLocked and the white disk displaying the word Unlocked, or being leftblank, if desired. A torsion spring 2% is coiled around the shaft 20 andmounted within a cylindrical casing 25, one end of said spring beingsecured to the bearing ring 22 and the other end of said spring beingsecured to the shaft 20 as for instance, through the instrumentality ofone of the disks of the semaphore. The semaphore may be secured to theshaft in any desired way. At this point it will be understood that thespring 2 1 exerts its tension to turn the'shaft 20 in a direction tobring the white disk of the semaphore to a vertical position which willindicate that the door leading into the inclosure is unlocked.

The forwardly extending arm 26 of the latch lever 6 is provided at itsextremity with a finger piece orhand knob 27 and is designed to be swungdown into the upwardly facing opening of akeeper 28 secured to the innerside of the door 2. In order to hold the latch lever down in the keeperthere is provided a leaf spring catch 29 secured to the keeper as shownand so arranged that the lever 6 cannot wedge behind it when being moveddownwardly into the keeper.

From the foregoing description in connection with the accompanyingdrawings, the operation of my improved signaling or indi catingapparatus will be apparent,

- In the practical'use of the device, when the inclosure is entered andthe door closed and the latch lever 6 swung down into the keeper 28 tolock the door, it is evident that the spring catch 29 will hold thelever 6 in its locking position and it is also evidentthat when thelever is swung downwardly, as just stated, its arm 7 will be swungupwardly and thereby move the link rod 11 upwardly and partially rotatethe shaft 20 in I a direction to bring the red disk tovertical the latchlever 6 from the keeper position andv the word Locked into view, theshaft being rotated against the tension of the torsion spring 24. Assoon as. the door is unlocked by the disengagement of, 28, the spring 24will be permitted to act and consequently the shaft 20 will be turned inthe reverse'direction to automatically shift the position of thesemaphore and bring the white disk into a vertical position, said spring2 f effectually precluding any accidental hanging of the parts in thismovement and securely maintaining the parts in the required position solong as the latch lever 6 is not engaged with and locked in the keeper28.

It will thus be seen that I have provided a very positively actingapparatus for the purpose described and one that may be cheaplymanufactured and the parts readily assembled and not liable to get outof order.

While the accompanying drawings illustrate what I believe to be thepreferred embodiment of my invention it is to be understood that theinvention is not limited there to but that variouschanges may be made inthe construction, arrangement and proportions of the parts withoutdeparting from the scope of the invention as defined in the appendedclaim.

Having thus described the invention, I

' claim A signaling device of the character described comprising incombination with a casing and a bracket plate arranged in spacedrelation to said casing; bearing sleeves upon said casing and bracketplate respectively, a tubular housing seated at its ends in said bearingsleeves, a rod longitudinally movable through said housing and sleeves,a second bearing sleeve formed upon the bracket plate, a shaft mountedto rotate therein and provided with a signaling semaphore on one of itsends, a spring to yieldingly hold said shaft against rotation, meansconnecting the opposite end of said shaft to one end'of thelongitudinally movable rod, an operating lever fulcrumed adjacent One ofits ends within said casing, and aconnection between said lever and theother end of said rod to move said rod and rotate the semaphore carryingshaft, substantially as andfor the purpose specified. p

In, testlmony whereof I hereunto affix my signature in the presence oftwo witnesses.

, DAN J. KAVANAGH.

Witnesses:

JOHN Fox, ANNA MIsKnuINs.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, I). C.

